Tension for loom-shuttles.



J. POlSSON.

TENSION FOR LOOM SHUTTLES.

APPLICANON FILED JAN.22,1914

Patented. May 4, 1915.

2 SHEETS-SHUT! anormcq J. POISSON.

TENSION FOR LOOM SHUTTLES.

APPLICATION FILED JAN.22. 19H.

Patented May 4, 1915.

2 SHEETS-SHEET 2 trateil mijrrioo f? 2.13 or oMpE; f

309F381! POISSON. FALL RIVER. MASSACHUSETTS, A3SIGN033 T0 DRAPERCOMPANY,

01 HGPEDALE. MASSACHUSETTS, A CORPOB-ATIGI; G MAINE.

TENSION oo Loomsrruwmo.

'mssmo;

T 0 oil uvmm it m 11 (022661733 Be it known that i, JOSEPH Pom-sou, ofFall River. in the county of Bristolumd State of Musszu'iiuselts;liureinventeil'u new and Improved Tension for LoozirShurtles, of whirl:the .iollowiiig is 'a 'spcrification.

The imprororl tension devices are. illus in the acrompuiiying drawings.\\l191'8l21- Figure l. a plain View of the eye end of the shuttleequipped with 112 present improvemrnts. parts being lJlUifll! away 20facilitate the illustration. Fig-3. .2, is a You ticul Soction in theplane indicated by the line 2-2 in Fig. 1. Fig. 3, is a rear viewofflslie outoumiic Himmler. a portion being lHOlflIl army. 3 2. 4} is :1horizontal srction in tho piano inriicuied by" lie line 15 Fig. :2.Fig". 9. side viow on an oiilo scale of the rouglwoeii iension snubliiugposts :12 lie eye of tho sliuld'lo. Fig. is a horizontal sociion on a.still lower soniI}. of I) one of the roughonarl torsion srmlilii posts.Fig. 7, isuoixle View on the some srule as Fig. ii. of a portion of omo? 'ili rouglio efi tension mobbing: ofiis. Figs. 8 and S). are illfurther magniii milled. views iliu mg the manner in which Hie roughenrclsurmces of tin snubbing postsnre 3-2f0(lll(((l.

'lllo improwmenls are illustrated in com nrction with; anoutomu'ririiliy tin-ending loom shuttle liin'i'ogz on automatictiirender of the Character shown in Foiled Smi es Letters lutout of ililiiom F. Draper, No. 834,607. Uctolier 30. 1906. As in flint pn'ionfi.tho shuttlo has a side ow liming am open slot a at its top throughwhirl: the thread is received. The automatic tin-mailer has itlongitudinal thread passage Grommunicuir ing iii; its from erul with rhosido eye and at its rear end with the woft'iooliiiiig chino bor l) orthe sliw'stle. Ti1l-3 l1l'8il mssuge is overhung lnremi retaining gurarcls oi ms- 'tomary character as shown at i). 5, in the drawings, izhesieguards iioing'srrungerl in customary manner. so as $0 ilroviole atortuous threading slofi: c for the entrance of the thread into theihroori prissge C. In

all of these respects the drziwings illusiro'te' a well-knownautomatically threading shwttle such is frequently used in wefireplanishing looms o? the well-known Northrop or Draper type. typifioil.for example, by the United Matters lntout of James H.

Sp eciflcation of Letters Faieniz.

Northrop, No. 529,940, November 27,1894. It is to sucl1 a wolbknownshuttle that the present improvements are up lied.

, Pate-urea! May 4, 1915. ii newon file-r1 Qauuogry 22,1314. sez'iaioe.833,789.

The shutile is provided'wiih three snub? hing posts, E, F, and G, asbest shown in Fig. l. The two snubbing posts F, and .G,

are at opposite sides of the siile eye A while the third snuobing post,E, is at the juncture between the thread passage 0 and the side eye A.When the shuttle is running in "rile direction indicated by the'arrowiii-Fi the-abroad passes around the post E'and i advances in .ooutactwith the post F as indj rated by full lines in Fig. 4. When th shuttleis traveling in the opposifie direction the thread from the post Earound the post (i as imlicuteri liy ilotlsrl limos in Fig. 4. flu: postE is so located that is' surfaces is iill'lgkl'l'ilfil io o lateral.plane which passes midway liaiwreri the iwo posts F mil Gsfl Him theionsion on iile thread is sui)stmi-' rho some which eror'way the shuttleis running. I

in addition to serving; lhe usual function sir I of preronifiingz il'wtin-earl. cuttiuginto the.

wood of ilio shuttle us it reeves through the the suuliliing posts F andG are roughrsu l so :is lo apply tension iothe thread. This rouglumingof H14 snuliliing posts of poruliar rimrs otm' us i104; iiiuslrulrfi inFigs. 6, '7. R. and 9. Earl! suuhliing post F anci G is oi liarrl steeland is formed with parallel spiral iilzreiuls (i. After 395% spiraltliruds of are formed they are roughenefl by notches (2 out nrross theloos of tiw tin-mills. These notohes ore lilcowiso spirally arranged butum? spiral disposition is in opposite direction to That of the screwiliromls iiliistriitezi in Figs. 5, 7 mul .9. Accordingly, as isapparent frorn'n ronsirlerntion of Fig. 7,

when a thread roovrs around one of tho filzgmorits which are engaged bythe roughen-. I

ing threads,-as indicazod in Fig. contributing to the tension oilect.

The two posts F and (l liavo'their spirals running in oppositedirections as iliustrafd thfl ilotted side eye sinre. which ever wayt-hishuttlo is running. the thrrnrl izends to 6, thereby in Fig. 5.Tliis'is useful in connection with passage and run down the post towardthe bottom of the thread eye thus keeping the thread away from the openslot of the eye and contributing in holding the thread from jumping outof the open slot. k similarly constructed tension post H is located atthe entrance to v the longitudinal thread passage 0 as illustrated inFigs. 3 and 4. This tension post H extends across the bottom of thethread passage C and contributes in applying tension. The spiral threadsof this post tend to work the thread against the rear wall of the threadpassage C, as shown in Fig. 4, beneath the rear overhang 6 therebyaiding in preventing the upward escape of the thread out through thethreading slot 0. v

,By reason of the spiral threads, eachtension post presents a series ofgrooves and angular ribs extending diagonally to the path of the yarn asit reeves around the post, and each dia onal rib is itself roughened byserrations. onsequently, each yarn as it is delivered from the shuttledrags over the roughened edges of several diagonal ribs so that therequisite 'tension is thereby imparted to the yarn. v

'1. A loom shuttle having, in combination, a slotted side eye; anautomatic threader with a longitudinal thread passage communicatingatits front with'the side eye and at its rear with the weft chamber ofthe shuttle; two vertical snubbing postsat opposite sides of the threadeye; a snubbing post at.

the juncture betweenthe longitudinal thread the side eye with its frontface in a lateral plane passingmidway between the snubbing posts atopposite sides ofthe tension post at the bottom and entrance of thelongitudinal thread passage, said tension post, and each of the snubbingposts at the side eye'bein roughened by meansof-spiral threads ancross-wise extending notches at the tops of saidthreads, and the spiralthreads of the snubbing posts at the sides of the side eye beingdisposed in opposite directions and in such direction as to tend to feedthe thread down toward the bottom of theside eye..

2. A loom shuttle having, in combination,

a slotted side eye; an automatic threaderwith a longitudinal threadpassage communicating at its front 'with the side eye and at its rearwith the weft chamber of the shuttle; two vertical snubbing posts atopposite sides of the thread eye; a snubbing post at the juncturebetween the'longitudinal thread passage and the side eye; a horizontaltension post at the bottom and entrance of the longitudinal threadpassage, said tension post, and eachof the snubbing posts at the sideeyebeing roughened by means of spiral threads'and cross-wise extendingnotches at thh tops of said threads, and the spiral threads of thesnubbing posts at the sides-of the side eye being disposed in oppositedirections and in such direction as to tendto feed the thread downtoward the bottom of the side eye.

3. A loom shuttle having, in combination, a side eye; a longitudinalthread passage communicating at its front with the side eye and at itsrear with the weft chamber of the shuttle; two vertical snubbing postsat opposite sides of the thread eye; a snubbing post at the juncturebetween the longitudinal thread passage and the side eye; a horizontaltension post at the bottom and entrance'of the longitudinal threadpassage, said tension post, and each of the snubbing posts at the sideeye being roughened by means of spiral threadszand cross-wise extendingnotches at the tops of said threads. v

4. A loom shuttle having, in combination, a slotted .side eye; anautomatic threader with a longitu inal thread passage com-- municatingat its front with the side eye and at its rear with the weft chamber ofthe shuttle; two vertical snubbing posts at opposite sides of-the threadeye; and a snubbing post at the juncture between the longi tudinalthread passage and the side eye, each of the snubbing posts at the .sideeye bein roughened by means of spiral threads an cross-wise extendingnotches at the tops of said threads, and the spiral threads of the postsat the sides of the eye being disposed in opposite as to tend the bottomof the side eye. 5. A loom shuttle havin imeombination, a side eye; alongitudina thread passage communicating at its front with the side 0 eand at its rear with the weft chamber of the o osite sides of the threadeye; and a snubshuttl e; two'vertical snubbing posts at ing post at thejuncture between the longidirections and in such direction to feed thethrefid down toward tudmal thread passage and the side eye, and

each of the snubbing posts at the side eye being roughened by means ofspiral-threads and cross-wise extending notches at'the top of saidthreads. e

6. A loom shuttle having, in combination, a slotted side eye; and twosnubbing posts at opposite sides of the thread eye; each of the snubbingposts at the side eye being roughened by means of spiral threads, andthe-spiral thread of' the two posts being disposed in oppositedirections and in such direction as to tend to feed-tlie'thread down*toward the bottom of the side eye.

7. A loom shuttle having, in combination, a side eye; a longitudinalthread passage v communicating at its front with the side eye and at itsrear with the weft chamber of the shuttle; two roughened verticalsnubnew hing posts at opposite sides of the thread I eye; and a snubbingpost at the juncture tween the longitudinal thread passage and the sideeye.

8. A loom shuttle having, in combination, a side eye; and two roughenedsnubbing posts at opposite sides of the thread e e.

9. A loom shuttle having, in com ination, a slotted side e e; anautomatic slotted threader with over anging guards and a longitudinalthread passage communicating at its front with the side eye and at'itsrear with the weft chamber of the shuttle; and a horizontal tension postat the bottom and entrance of the longitudinal thread passage, saidtension post being roughened b means of spiral threads so arranged as toorce the yarn against the side wall of the thread passage, therebyaiding in preventing the escape of the yarn through the threading 'slot.

10. A loom shuttle having, in combination, a side eye; a longitudinalthread passa 0 communicating at its front with the si e e e and at itsrear with the weft cham- "ber o the shuttle; and a horizontal tension 1post at the bottom and entrance of the lon- 'tudinal thread passage,said tension post ing roughened by means of spiral threads andcross-wise extending notches at the tops of said threads. Y

11. A loom shuttle having a roughened tension post with spiral threadsand notches cut across said threads, the notches themselves beingspirally disposed, the spiral of the notches being in o posits directionto the spiral of the three s.'

12. A loom. shuttle having a roughened tension post with spiral threadsand notches cut across said threads, the notches themselves beingspirally disposed.

13. A loom shuttle having a roughened tension post with spiral threadsand notches cut across said threads.

14. A loom shuttle having a roughened tension post with spiral threads.

'15. A loom shuttle having a roughened tension post with a series ofribs extending diagonally to the path of the yarn as it reeves aroundthe post, each rib being serrated at its edge.

16. A loom shuttle having a roughened tension post having a series ofribs extending diagonally to the path of the yarn as it reeves aroundthe pos In witness whereof I have hereunto signed my name in thepresence of two subscribing w tnesses.

.' V JOSEPH POISSON.

- Witnesses SEVERIN M. LAMARRE; EUGENE S. SULLIVAN.

